[ovs-dev] [PATCH v1 2/2] ofproto: Wildcard TTL on IP tunnels
Haggai Eran
haggaie at mellanox.com
Thu Jan 14 11:29:08 UTC 2016
There is no need to set the mask on the outer header IP TTL [1]. The only requirement
is that the TTL will be non-zero. Clear the mask in tnl_wc_init().
[1] OVS VXLAN decap rule has full match on TTL for the outer headers?
http://www.spinics.net/lists/netdev/msg351961.html
Cc: Jesse Gross <jesse at kernel.org>
Cc: Joe Stringer <joe at ovn.org>
Signed-off-by: Haggai Eran <haggaie at mellanox.com>
---
ofproto/tunnel.c | 2 +-
tests/tunnel-push-pop-ipv6.at | 2 +-
tests/tunnel-push-pop.at | 2 +-
tests/tunnel.at | 18 +++++++++---------
4 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/ofproto/tunnel.c b/ofproto/tunnel.c
index 5cf6c7540187..24b717a3ce86 100644
--- a/ofproto/tunnel.c
+++ b/ofproto/tunnel.c
@@ -373,7 +373,7 @@ tnl_wc_init(struct flow *flow, struct flow_wildcards *wc)
FLOW_TNL_F_CSUM |
FLOW_TNL_F_KEY);
wc->masks.tunnel.ip_tos = UINT8_MAX;
- wc->masks.tunnel.ip_ttl = UINT8_MAX;
+ wc->masks.tunnel.ip_ttl = 0;
/* The tp_src and tp_dst members in flow_tnl are set to be always
* wildcarded, not to unwildcard them here. */
wc->masks.tunnel.tp_src = 0;
diff --git a/tests/tunnel-push-pop-ipv6.at b/tests/tunnel-push-pop-ipv6.at
index 784a71f956b6..8f6506a716f9 100644
--- a/tests/tunnel-push-pop-ipv6.at
+++ b/tests/tunnel-push-pop-ipv6.at
@@ -146,7 +146,7 @@ AT_CHECK([ovs-ofctl dump-ports int-br | grep 'port 5'], [0], [dnl
port 5: rx pkts=1, bytes=98, drop=0, errs=0, frame=0, over=0, crc=0
])
AT_CHECK([ovs-appctl dpif/dump-flows int-br], [0], [dnl
-tunnel(tun_id=0x7b,ipv6_src=2001:cafe::92,ipv6_dst=2001:cafe::88,ttl=64,geneve({class=0xffff,type=0x80,len=4,0xa/0xf}{class=0xffff,type=0,len=4}),flags(-df-csum+key)),skb_mark(0),recirc_id(0),in_port(6081),eth_type(0x0800),ipv4(frag=no), packets:0, bytes:0, used:never, actions:userspace(pid=0,slow_path(controller))
+tunnel(tun_id=0x7b,ipv6_src=2001:cafe::92,ipv6_dst=2001:cafe::88,geneve({class=0xffff,type=0x80,len=4,0xa/0xf}{class=0xffff,type=0,len=4}),flags(-df-csum+key)),skb_mark(0),recirc_id(0),in_port(6081),eth_type(0x0800),ipv4(frag=no), packets:0, bytes:0, used:never, actions:userspace(pid=0,slow_path(controller))
])
OVS_VSWITCHD_STOP
diff --git a/tests/tunnel-push-pop.at b/tests/tunnel-push-pop.at
index b04f4a6bc728..b29b47737449 100644
--- a/tests/tunnel-push-pop.at
+++ b/tests/tunnel-push-pop.at
@@ -144,7 +144,7 @@ AT_CHECK([ovs-ofctl dump-ports int-br | grep 'port 5'], [0], [dnl
port 5: rx pkts=1, bytes=98, drop=0, errs=0, frame=0, over=0, crc=0
])
AT_CHECK([ovs-appctl dpif/dump-flows int-br], [0], [dnl
-tunnel(tun_id=0x7b,src=1.1.2.92,dst=1.1.2.88,ttl=64,geneve({class=0xffff,type=0x80,len=4,0xa/0xf}{class=0xffff,type=0,len=4}),flags(-df-csum+key)),skb_mark(0),recirc_id(0),in_port(6081),eth_type(0x0800),ipv4(frag=no), packets:0, bytes:0, used:never, actions:userspace(pid=0,slow_path(controller))
+tunnel(tun_id=0x7b,src=1.1.2.92,dst=1.1.2.88,geneve({class=0xffff,type=0x80,len=4,0xa/0xf}{class=0xffff,type=0,len=4}),flags(-df-csum+key)),skb_mark(0),recirc_id(0),in_port(6081),eth_type(0x0800),ipv4(frag=no), packets:0, bytes:0, used:never, actions:userspace(pid=0,slow_path(controller))
])
OVS_VSWITCHD_STOP
diff --git a/tests/tunnel.at b/tests/tunnel.at
index d4589bd9ba48..2c4a971ae6eb 100644
--- a/tests/tunnel.at
+++ b/tests/tunnel.at
@@ -82,28 +82,28 @@ AT_CHECK([ovs-appctl dpif/show | tail -n +3], [0], [dnl
dnl Tunnel CE and encapsulated packet CE
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'tunnel(src=1.1.1.1,dst=2.2.2.2,tos=0x3,ttl=64,flags()),in_port(1),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=3,ttl=64,frag=no),tcp(src=8,dst=9)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_ttl=64,tun_flags=-df-csum-key,in_port=1,nw_ecn=3,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_flags=-df-csum-key,in_port=1,nw_ecn=3,nw_frag=no
Datapath actions: 2
])
dnl Tunnel CE and encapsulated packet ECT(1)
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'tunnel(src=1.1.1.1,dst=2.2.2.2,tos=0x3,ttl=64,flags()),in_port(1),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=1,ttl=64,frag=no),tcp(src=8,dst=9)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_ttl=64,tun_flags=-df-csum-key,in_port=1,nw_ecn=1,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_flags=-df-csum-key,in_port=1,nw_ecn=1,nw_frag=no
Datapath actions: set(ipv4(tos=0x3/0x3)),2
])
dnl Tunnel CE and encapsulated packet ECT(2)
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'tunnel(src=1.1.1.1,dst=2.2.2.2,tos=0x3,ttl=64,flags()),in_port(1),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=2,ttl=64,frag=no),tcp(src=8,dst=9)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_ttl=64,tun_flags=-df-csum-key,in_port=1,nw_ecn=2,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_flags=-df-csum-key,in_port=1,nw_ecn=2,nw_frag=no
Datapath actions: set(ipv4(tos=0x3/0x3)),2
])
dnl Tunnel CE and encapsulated packet Non-ECT
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'tunnel(src=1.1.1.1,dst=2.2.2.2,tos=0x3,ttl=64,flags()),in_port(1),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=64,frag=no),tcp(src=8,dst=9)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_ttl=64,tun_flags=-df-csum-key,in_port=1,nw_ecn=0,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=3,tun_flags=-df-csum-key,in_port=1,nw_ecn=0,nw_frag=no
Datapath actions: drop
])
OVS_VSWITCHD_STOP(["/dropping tunnel packet marked ECN CE but is not ECN capable/d"])
@@ -436,14 +436,14 @@ AT_CHECK([tail -1 stdout], [0],
dnl Option match
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x0,src=1.1.1.1,dst=1.1.1.2,ttl=64,geneve({class=0xffff,type=0,len=4,0xb}),flags(df|key)),in_port(6081),skb_mark(0),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_ttl=64,tun_flags=+df-csum+key,tun_metadata0=0xb/0xf,in_port=1,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_flags=+df-csum+key,tun_metadata0=0xb/0xf,in_port=1,nw_frag=no
Datapath actions: 2
])
dnl Skip unknown option
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x0,src=1.1.1.1,dst=1.1.1.2,ttl=64,geneve({class=0xffff,type=0,len=4,0xb}{class=0xffff,type=2,len=4,0xc}),flags(df|key)),in_port(6081),skb_mark(0),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_ttl=64,tun_flags=+df-csum+key,tun_metadata0=0xb/0xf,in_port=1,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_flags=+df-csum+key,tun_metadata0=0xb/0xf,in_port=1,nw_frag=no
Datapath actions: 2
])
@@ -477,7 +477,7 @@ AT_CHECK([ovs-ofctl add-tlv-map br0 "{class=0xffff,type=3,len=8}->tun_metadata3"
AT_CHECK([ovs-ofctl add-flow br0 tun_metadata3=0x1234567890abcdef,actions=2])
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x0,src=1.1.1.1,dst=1.1.1.2,ttl=64,geneve({class=0xffff,type=3,len=8,0x1234567890abcdef}),flags(df|key)),in_port(6081),skb_mark(0),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_ttl=64,tun_flags=+df-csum+key,tun_metadata3=0x1234567890abcdef,in_port=1,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_flags=+df-csum+key,tun_metadata3=0x1234567890abcdef,in_port=1,nw_frag=no
Datapath actions: 2
])
@@ -512,13 +512,13 @@ NXST_FLOW reply:
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x0,src=1.1.1.1,dst=1.1.1.2,ttl=64,geneve({class=0xffff,type=0,len=4,0x12345678}),flags(df|key)),in_port(6081),skb_mark(0),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_ttl=64,tun_flags=+df-csum+key,tun_metadata0,tun_metadata1=NP,tun_metadata2=NP,in_port=1,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_flags=+df-csum+key,tun_metadata0,tun_metadata1=NP,tun_metadata2=NP,in_port=1,nw_frag=no
Datapath actions: 2
])
AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x0,src=1.1.1.1,dst=1.1.1.2,ttl=64,geneve({class=0xffff,type=1,len=0}),flags(df|key)),in_port(6081),skb_mark(0),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
AT_CHECK([tail -2 stdout], [0],
- [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_ttl=64,tun_flags=+df-csum+key,tun_metadata1,tun_metadata2=NP,in_port=1,nw_ecn=0,nw_frag=no
+ [Megaflow: pkt_mark=0,recirc_id=0,ip,tun_id=0,tun_src=1.1.1.1,tun_dst=1.1.1.2,tun_tos=0,tun_flags=+df-csum+key,tun_metadata1,tun_metadata2=NP,in_port=1,nw_ecn=0,nw_frag=no
Datapath actions: set(tunnel(tun_id=0x0,dst=1.1.1.1,ttl=64,geneve({class=0xffff,type=0x1,len=0}),flags(df|key))),6081
])
--
1.7.11.2
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